Dispensing valve



Aug. 27, 1929. i w. N. LURcoT'r 1,726,402.

DIsPENsING VALVE Filed March 10. 1927 /Wsgd L 73 um Z7 51.9 .5'4

BY @20M/1% ATTORN EY Patented Aug. 27, 1929.

UNITED isrxrEs,

PATENT OFFICE.

WINFRED NORTON LURCOTT, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO MOORE BROS. COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

DrsPnNsING VALVE.'

Application filed March 10, 1927. Serial No. 174,333.

rIhis invention relates to valves particularly adapted'to be used forrapidly Vdispensing or discharging quantities of liquid soap. lThe principal object of the present 'invention is the production of a valve which embodies novel features of'construction rendering the valve practically leak-proof, reliable and effectual in operation.

The nature of the invention and its distinguishing features and advantages will ap-l pear when the following specication is read in connection with the accompanying drawing,`in which- Figure 1 is a central longitudinal sectional view through the valve with the `parts thereof in a normal relationship.

Fig. 2 is a similar view to Fig. 1 but showing the relationship of .the parts immediatelypriorto the discharging action.

Fig. 3 is a view similar to Fig. 1 showing the relationship of the parts when the valve is discharging.

Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 1.

F ig; 5 is a transverse sectional view taken on the line 5 5 of Fig. 1. y

Referring now more particularly to the drawing, it will be apparent, that the valve includes a cylindrical casing or barrel 10y open at each end, and one end being internally threaded as at 11 for effecting the connection. of the barrel 10 with a supply pipe 12 which leads to a source of'liquid soap.v

The barrel 10 has a transverse partition 13 having a passage 14,. and whichembodies a seat 15 at one end of the passage 14 and a seat 16 at the opposite end of said passage.`

A plunger 17 is arranged for movement 1n the barrel 10. rIhe plunger 17 is of hollow construction with a neck 18 at one end having a cylindrical bore 19 which communicates with an outlet 20 by virtue of a space or chamber 21 formed in part by the end of a plug 22 threaded in the end of the plunger opposite to that having the neck18. The plug 22 has a head 23. The outlet 2O consists of a short tubular member which is threaded into the wall of the plunger 17 and extends into a slot 24 in the wall of the barrel 10.v A gasket-25 is arranged on the neck 18' between the end of the plunger and' a collar 26 which also is arranged on the neck 18. The partition 13, the wall of the `barrel 10, and the inner parts of the plunger 17 define a chamber 27. The passage 14 in the partition 13" is in communication with the space at the supply pipe side of the partition 13 and thel chamber 27 The bore 19 is smaller in diameter than the space 21 and therefore provides a shoulder Lor seat 28. The bore 19 and space 21 are the equivalent of a passage which establishes communica-- tion between the chamber 27 and the outlet `20. A coil spring 29 is employed in the chamber 27. One end of the spring 29 bears against the partition 13 and the opposite end thereof bears against the collar 26. The said spring 29 functions to return the plunger 17 to its normal position.

In order to control the vpassages respectively in the partition 13 and the plunger 17 there is provided a control` assemblage which consists of two separably connected sections, a section 30 and a section 31.` The 'section 30 is cross sectionally round a portion of its length and is cross sectionally triangular as at 32 the other portion of its length. One end of the section 3() has a collar 33 and the same end has a threaded bore 34. The opposite end of the section 30 has a valve member 35. "The collar 33is disposed a small distance from the eXtreme end 36 of the section 30, which end 36 constitutes a valve member.. The section 31 has a cross sectionallyrround portion 37 `screw threaded, and an intermediate cross sectionally triangular portion' 38and a portion 39 constituting a valve member. The sections 30 and 31 are connected together by threading the portion 37 in the bore 34. This is accomplished by inserting the section 30 into the bore 19 through the plug end of the plunger, and the section v31 is inserted from the opposite end ofthe barrel into the passage 14. The valve members 35 and 39 are provided respectivelyl withkerfs for accommodating the ends Lof screw drivers so that one section may beheld 4while the other is being turned to connect the sections together. A coil spring`40 surrounds the section 30 and has one end thereof iny engagement with the collar 33 and the opposite endthereof is in engagement with the neck 18 on the plunger. The spring l() functions to spring the valve member in engagement with the seat 28.

With the parts in the relationship shown in Fig. 1, and assuming that the chamber 27 is lilled with liquid soap, upon the movement oi the plunger 17 inwardly against the action of the spring 29, the valve member 39 will be moved away from the seat 15 with which it coacts. Meanwhile the valve membei' 35 will be against its seat 28 preventing any of the liquid soap in the chamber 27 from passing along the portion 32 through the bore 19 and space 21 constituting a passage to the outlet 20. lAs thel plunger is pressed further inwardly, there comes a time when the valve member 36 encounters the seat 16 with which it coacts with the collar 33 confronted by the partition 13, thus holding the control assemblage in its entirety against movement while` the plunger 17 moves with respect to the section 30 of the assemblage compressing the spring 410. This relative movement of the plunger 17 with `respect to the section 3() results in the valve member 35 being removed from its seat 28. It .will be apparent then that the passage 14 will be closed while the passage in the plunger leading to the outlet 2O will be opened. It follows therefore that as the plunger 17 is pushed inwardly to the limit, the liquid soap trapped in the chamber 27 will be put under' pressure, and will be forced through the bore 19 along the portion 32 through the space 21 out through the outlet 20 in the form of a charge. `When pressure on the plunger 17 is withdrawn, the

`spring 29 functionsv to return the plunger to its normal position. Vhile the plunger 17 is returning to its. normal position, there comes a time when the valve member 35 is engaged by thev seat 28, and this occurs before the valve member 36 moves oil its seat 16. Further return movement o'l' plunger 17 will not atleet the engagement of the valve member 35 with yits seat` 28 because of the action of the spring 10.v Liquid soap will then be allowed to enter the chamber 27 through the passage la which will open until the valve member 39 engages its seat 15 to close thev passage 14. It will there-v described, the right being reserved to make minor changes and alterations within the scope oi' the appended claims.

I claim:

1. A valve for dispensing quantities of liquid soap comprising a barrel adapted to be attached to a supply pipe, a plunger arranged for movement in the opposite end of the barrel, saidplunger having an outlet, a partition extending transversely of the barrel, said partition having an inlet passage therein in communication with a chamber defined by the partition, side wall of the barrel and the inner end of the plunger, said plunger having a passage therein in communication with said chamber and said outlet, a control assemblage comprising a pair of valve members for controlling the inlet passage in the partition, and a valve member for controlling the passage in the plunger; means acting on the plunger for automatically effecting its return movement to a normal position upon removal of pressure, one of the valve members preventing liquid soap from entering the chamber through said inlet passage and one of the valve members preventingv liquid soap from discharging through the outlet when the plunger is in its normal position, and means acting on the control assemblage causing one of .the valve members to temporarily close the passage in the plunger during the inward movement of the plunger to prevent escape of the liquid soap in the chamber, one of the valve members closing the inlet passage to prevent escape of theliquid soap in thechamber through the inlet passage during the inward movement of the plunger, while the valve member for controlling the passage in the plungeris in openl positiony to allow the liquid soap displaced from the chamber by the plunger in the further movement of the latter to pass out of the outlet.

2. A device for dispensing quantities of liquid soap comprising a barrel adapted to be attached to a supply pipe, said barrel having a partition at the inlet end, said partition having an inlet which opens into a liquid chamber in the barrel, a plunger ar- .rangedior movement in the liquid chamber and equal in diameter to the diameter of the liquid chamber, a gasket surrounding the inner end of said plunger and movable in contact with the wall of the liquidchamber, said plunger having a small bore in the inner end which communicates with a large bore therein and an outlet in communication with the large bore; an element of two parts detachably connected together, one of` said parts embodying a valve member which controls the partition inlet and a portion which is smaller in cross sectional area than the area of thek inlet and movable. in Contact with the wall of the latter, the other part of said element embodying a valve member lOO which controls said inlet, a Valve member which controls the small bore in the plunger, and a portion Which is smaller in cross sectional area than the area of the small bore and movable in Contact With the Wall thereof; yieldable means acting on the plunger to automatically return the plunger to a normal position upon the removal of pressure, and yieldable means acting on said element whereby the valve members control 10 said partition inlet andsmall bore in said plunger respectively, in response to movements of the plunger.

VVINFRED NORTON LURCOTT. 

